<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Alik,<div><br></div><div>Thanks for reporting this. To me it sounds indeed like a bug. It would be great if you could file this as such on our bugzilla bug-tracking system. <a href="http://www.bugzilla.fcdonders.nl">www.bugzilla.fcdonders.nl</a>. If you create yourself an account and file a new bug, with the contents of this e-mail, we can take it from there. If you already have a fixed version of the code, feel free to attach it as attachment to the bug ;-).</div><div><br></div><div>Best wishes,</div><div>Jan-Mathijs</div><div><br></div><div><br><div><div>On Feb 11, 2014, at 5:11 PM, Alik Widge wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div><div>I have encountered a behavior with ft_timelockgrandaverage that seems to me to be a bug, but I'm not quite sure. Hence why I am asking here and not just filing a bug. I'm using the attached .mat, and you can replicate the behavior with:<br>
<br> cfg = [];<br> cfg.channel = 'all'; <br> cfg.keepindividual = 'no';<br> cfg.method = 'within'; <br><br></div>out_data = ft_timelockgrandaverage(cfg,Dstruct.on.MSITOnset.global.x{:});<br>
<br><br></div>This will crash due to an array dimension mismatch. It does so because my different subjects/blocks in x{:} have different numbers of samples. Up around line 147, the ft_ function goes through varargin{:} and cuts down the averaged variable (in my case, 'avg') so that it has the same number of samples in each of the varargin{:} data structures.<br>
<div><div>The thing that I feel is a bug: it cuts the data, (expressed as varargin{i}.(cfg.parameter) ), but it does NOT similarly cut the variance ( varargin{i}.var ) or the per-timepoint DOF ( varargin{i}.dof ). As a result, when it gets to line 193 and tries to do<br>
<br> avgmat(s, :, :) = varargin{s}.(cfg.parameter).*varargin{s}.dof;<br><br></div><div>the (cfg.parameter) and dof matrices are now of different sizes, and we crash.<br><br></div><div>I can add my desired behavior to a local copy of the function and keep working, but would appreciate some advice on whether this is actually a bug, or somehow a design feature that I've failed to understand.<br>
</div><div><br><br clear="all"><div><div><div><div dir="ltr">Alik Widge<br><a href="mailto:alik.widge@gmail.com" target="_blank">alik.widge@gmail.com</a><br>(206) 866-5435<br><br></div></div>
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font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Jan-Mathijs Schoffelen, MD PhD </div><div><br></div><div>Donders Institute for Brain, Cognition and Behaviour, <br>Centre for Cognitive Neuroimaging,<br>Radboud University Nijmegen, The Netherlands</div><div><br></div><div>Max Planck Institute for Psycholinguistics,</div><div>Nijmegen, The Netherlands</div><div><br></div><div><a href="mailto:J.Schoffelen@donders.ru.nl">J.Schoffelen@donders.ru.nl</a></div><div>Telephone: +31-24-3614793</div><div><br></div><div><a href="http://www.hettaligebrein.nl">http://www.hettaligebrein.nl</a></div></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></span>
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